Rowen said he was “horrified” and “sad” to see “U2 using their rather large platform” to “promote something that’s so obviously wrong” — adding: “Shame on them.”

The attack is even closer to Bono as the band’s one-time cover star is the younger brother of the artist Guggi, the U2 frontman’s close pal.

Peter is known to millions of U2 fans around the globe as the boy on the cover of albums Boy, War and their 1988 singles collection.

He later made a name for himself as a photographer, featuring in the New York Times, and has clients including Sky, Channel 4, and the Gate Theatre, as well as taking studies of people, including artist Louis Le Brocquy and U2 themselves.

The Dubliner, who grew up around the corner from Bono, explained: “The Eighth Amendment is the only legal protection that the unborn currently have under the Irish Constitution. Removing it (which is what’s being proposed) will literally pave the way for abortion on demand.

“The most difficult, the most complex and complicated cases are being used to sway the Irish people on the run into this referendum.

“The reality is that if abortion is made legal in Ireland most of the children who die will be healthy babies aborted by healthy mothers. Don’t be fooled by the propaganda. Abortion is not about healthcare. It’s not about compassion.

“We’re being told it’s a human rights issue. Since when did humans have the right to end the life of another? As Christians we’re called to be lights in a world that’s growing ever darker.

“Jesus said, ‘The thief (Satan) comes only to steal, to kill and destroy. I have come that they may have life and have it in all its fullness’ #savethe8th #voteno #loveboth.”

When asked if he believed Jesus made promises that would come true, Bono replied, “Yes, I do.”

Photographer Peter is not the only U2 fan upset with the band’s stance. In the US, many have threatened to boycott their concerts there.

One fan @ChristyRae2013 tweeted: “This breaks my heart. I have loved and followed you for 20 years. I still love you but I can’t follow you down this road. My tickets to upcoming shows will go unused.”

Speaking previously Rowen said that his involvement with U2 over the years was “always a very positive thing” and never encroached on his life.

He added: “You have to remember that U2 were a very small band back then. I was six at the time and hanging around with other kids.

“We wouldn’t have been into rock music so U2 meant nothing to me or my friends.”

Meanwhile, a group of consultant psychiatrists have criticised the Irish Government for presenting abortion as “treatment” for mental health issues.

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In a letter, the group of 26 psychiatrists said it was “dishonest” to justify a change in the law as healthcare.

The letter continued: “Given the experience in the UK, we can confidently say that abortions taking place in this country after 12 weeks will be authorised under the mental health ground.

“As in the UK, there will be little or no justification for this in the great majority of cases. We do not want to see spurious appeals to ‘mental health’ being used to justify post-12-week abortions.”